6212205620 has 48 divisors (see below), whose sum is σ = 13838964048. Its totient is φ = 2334320640.

The previous prime is 6212205617. The next prime is 6212205641. The reversal of 6212205620 is 265022126.

It can be written as a sum of positive squares in 8 ways, for example, as 33616804 + 6178588816 = 5798^2 + 78604^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6212205620.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167054 + ... + 200826.

It is an arithmetic number, because the mean of its divisors is an integer number (288311751).

Almost surely, 2^6212205620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6212205620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6919482024).

6212205620 is an abundant number, since it is smaller than the sum of its proper divisors (7626758428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6212205620 is a wasteful number, since it uses less digits than its factorization.

6212205620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34340 (or 34338 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6212205620 is about 78817.5463967256. The cubic root of 6212205620 is about 1838.2952882405.

Adding to 6212205620 its reverse (265022126), we get a palindrome (6477227746).

The spelling of 6212205620 in words is "six billion, two hundred twelve million, two hundred five thousand, six hundred twenty".